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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal">Yes, this is a photo from the Canadian Museum of Nature. It is no longer on our website.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">These three frogs, as well as other natural history materials (fur, feathers, shells, etc.), were exposed to sunlight thought a window for a period of time. The frogs (fluid specimens) had the most dramatic changes and that is why the
photo has been used to demonstrate light damage.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1">The frog on the left was kept under aluminum foil – no UV or visible light.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1">The frog in the middle was covered with a UV filter - exposed to visible light.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1">The frog on the right was exposed to full sunlight – visible light and UV.<o:p></o:p></li></ul>
<p class="MsoNormal">The frog kept in the dark retained its colour. The frog exposed to only visible light faded much slower than the one exposed to full sunlight. It retains some colour. While the frog exposed to full sunlight faded faster and lost more
colour overall. The other observation is that the frog exposed to UV and visible light showed signs of breaking down of the tissue. The surface of the frog was sticky to touch.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Visible light will cause light damage, but much slower than if also exposed to UV radiation.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Another resource from the Canadian Conservation Institute: The Light Damage calculator.
<o:p></o:p></p>
<p class="MsoNormal"><a href="https://app.pch.gc.ca/application/cdl-ldc/description-about.app?lang=en">Light Damage Calculator - Canada.ca</a>
<o:p></o:p></p>
<p class="MsoNormal">This tool really helps demonstrate how any amount of UV significantly accelerates the damage to materials. However, visible light will also cause light damage, but at a much slower rate. That is why it is important to control light levels
for exhibitions, but also collections area. Something like making sure lights turned off at night makes a big difference.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Luci<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="FR-CA" style="font-family:"Comic Sans MS";color:#0070C0">Luci Cipera</span></b><span lang="FR-CA" style="font-family:"Comic Sans MS";color:#0070C0"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Conservator, Collection Services and Information Management<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Conservatrice-restauratrice, Service des collections et gestion de l’information<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span lang="FR-CA" style="font-family:"Calibri",sans-serif;color:black">Canadian Museum of Nature / Mus</span></b><b><span lang="FR" style="font-family:"Calibri",sans-serif;color:black">é</span></b><b><span lang="FR-CA" style="font-family:"Calibri",sans-serif;color:black">e
canadien de la nature</span></b><b><span lang="FR-CA" style="font-family:"Calibri",sans-serif"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">613-364-4079<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="mailto:lcipera@nature.ca"><span style="color:#0563C1">lcipera@nature.ca</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu>
<b>On Behalf Of </b>Mariana Di Giacomo<br>
<b>Sent:</b> January 29, 2025 7:54 AM<br>
<b>To:</b> Shoobs, Nate <shoobs.1@osu.edu><br>
<b>Cc:</b> NHCOLL-new <nhcoll-l@mailman.yale.edu><br>
<b>Subject:</b> [EXT]Re: [Nhcoll-l] [EXTERN] Re: LED lights in collections<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:red">COURRIEL EXTERNE. Ne cliquez sur aucun lien ou pièce jointe à moins que vous ne connaissiez l'expéditeur.</span>
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<p class="MsoNormal"><span style="color:red">EXTERNAL EMAIL. Do not click any links or attachments unless you know the sender.</span>
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<p class="MsoNormal">Dear Nate,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">It is quite possible that the LEDs are causing the damage because light damage is not only caused by UV but also by visible light (and IR but through other mechanisms). <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Here's a good resource from the Canadian Conservation Institute about light as an agent if deterioration:
<a href="https://www.canada.ca/en/conservation-institute/services/agents-deterioration/light.html" target="_blank">
https://www.canada.ca/en/conservation-institute/services/agents-deterioration/light.html</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">And I'm also including an image I took from the Internet a while back but cannot find again (it has a Canadian Museum of Nature watermark, but I cannot find the original source anymore). It is a great example of both UV (right) and visible
light (middle) affecting museum collections. Maybe some of our Canadian colleagues can provide the resource.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hope it helps,<o:p></o:p></p>
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<p class="MsoNormal">Mariana <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Mariana Di Giacomo, PhD<br>
Natural History Conservator, Yale Peabody Museum<br>
Associate Editor, Collection Forum, SPNHC <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, Jan 28, 2025, 15:16 Shoobs, Nate <<a href="mailto:shoobs.1@osu.edu" target="_blank">shoobs.1@osu.edu</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt">Question on this subject – our museum uses Phillips
</span><span lang="EN-US">MASTER LEDtube InstantFit HF T8 bulbs in old fluorescent light ballasts. The building was converted from ancient 80’s GE fluorescent tubes (that emitted a significant amount of UV light) back in 2018.
<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I’ve noticed that posters I’ve put on the wall near these new lights have faded significantly in the last 4 years, despite our collections spaces having no other
light sources and no windows. It could be that the poster inks are not light fast, but this thread made me wonder if the LED bulbs are doing the damage.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I can’t find a spec sheet that quantifies the amount of UV or IR emitted by these bulbs, but I see that Phillips’ marketing language claims that the bulb “Emits
virtually no UV rays or IR”.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Anyone know whether these bulbs actually emit UV that will damage materials over time?
<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Best,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Nate<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif">--</span><span lang="EN-US"><o:p></o:p></span></p>
<pre style="line-height:13.5pt;background:white"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><img border="0" width="224" height="45" style="width:2.3333in;height:.4722in" id="_x0000_i1027" src="https://mail.google.com/mail/?ui=2&ik=6af81571df&attid=0.2&th=194b213a70f08b25&view=fimg&fur=ip&rm=194b213a70f08b25&sz=w1600-h1000&attbid=ANGjdJ9R8Z5NZNAgVX7pz4cewPoHgYUFVISl6hKXIKNqH9vfZhwrxFaijeKxOxiliBM9bf-HQ5Kuh1S_FEgD21pbbYDRcHOFehwMJ5akhZHWPETQXuwjMgqAMPTF2lg&disp=emb&realattid&zw" alt="The Ohio State University"></span><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><br></span><b><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">Nathaniel F. Shoobs</span></b><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><br>Curator of Mollusks<br></span><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">College of Arts & Sciences</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"> Dept. of Evolution, Ecology, and Organismal Biology<br>Museum of Biological Diversity, <a href="https://www.google.com/maps/search/1315+Kinnear+Rd,+Columbus,+OH+43212?entry=gmail&source=g" target="_blank">1315 Kinnear Rd, Columbus, OH 43212</a><br>614-688-1342 (Office)<br><a href="http://mbd.osu.edu" target="_blank"><span style="color:#0563C1;background:white">mbd.osu.edu</span></a></span><span lang="EN-US"><o:p></o:p></span></pre>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><b><span lang="EN-US" style="color:black">From:
</span></b><span lang="EN-US" style="color:black">Nhcoll-l <<a href="mailto:nhcoll-l-bounces@mailman.yale.edu" target="_blank">nhcoll-l-bounces@mailman.yale.edu</a>> on behalf of Angela Hornsby <<a href="mailto:horns076@umn.edu" target="_blank">horns076@umn.edu</a>><br>
<b>Date: </b>Thursday, January 23, 2025 at 3:44</span><span lang="EN-US" style="font-family:"Arial",sans-serif;color:black"> </span><span lang="EN-US" style="color:black">PM<br>
<b>To: </b>Dirk Neumann <<a href="mailto:d.neumann@leibniz-lib.de" target="_blank">d.neumann@leibniz-lib.de</a>><br>
<b>Cc: </b><a href="mailto:nhcoll-l@mailman.yale.edu" target="_blank">nhcoll-l@mailman.yale.edu</a> <<a href="mailto:nhcoll-l@mailman.yale.edu" target="_blank">nhcoll-l@mailman.yale.edu</a>><br>
<b>Subject: </b>Re: [Nhcoll-l] [EXTERN] Re: LED lights in collections</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:1.0pt;color:white">Thanks for the input and resources, everyone. This is really helpful, especially the CCI bulletin which I had not run across
yet! Angela -- Angela Hornsby, Ph.</span><span lang="EN-US" style="font-size:1.0pt;font-family:"Arial",sans-serif;color:white"> </span><span lang="EN-US" style="font-size:1.0pt;color:white">D. (she) Zoological Collections Manager (MMNH / JFBM) Bell Museum
University of Minnesota</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Thanks for the input and resources, everyone. This is really helpful, especially the CCI bulletin which I had not run across yet!<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Angela<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">--<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:#222222">Angela Hornsby, Ph.D. (she)</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:#222222">Zoological Collections Manager (MMNH / JFBM)</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:#222222">Bell Museum</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:#222222">University of Minnesota</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:#222222"><a href="https://urldefense.com/v3/__https:/www.bellmuseum.umn.edu/zoological-collections/__;!!KGKeukY!ztpZgmv9y3v5wk9H77YsW9QuWVS0KqD3h4ENFEVkSnnPAhUhF9t6tB44ov33jvEcCfTyMwBUxk94EDQTNQ$" target="_blank">https://www.bellmuseum.umn.edu/zoological-collections/</a></span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="color:#222222"> </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">On Thu, Jan 23, 2025 at 2:31</span><span lang="EN-US" style="font-family:"Arial",sans-serif"> </span><span lang="EN-US">PM Dirk Neumann <<a href="mailto:d.neumann@leibniz-lib.de" target="_blank">d.neumann@leibniz-lib.de</a>>
wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">.. depending on the quality of the LED bulbs, they can be a great opportunity to significantly reduce UV-emissions and UV-induced damage, e.g. compared to old
neon lights. But not all are. <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Also, retrofitting old neon light sockets with modern LED bulbs however may create problems and should be considered with great care, because old and especially
historic ballast units may fail and even start burning.<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">This is also mentioned in the CCI Technical Bulleting Dee just shared (thanks for sharing!)<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">All the best<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Dirk<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Am 23.01.2025 um 19:38 schrieb Callomon,Paul:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Changing to LEDs makes sense in many ways. They consume a fraction of the energy used by incandescent or even fluorescent bulbs, and do not get anywhere near
as hot. Both factors reduce stress on older light fixtures and thus the danger of sparking. They do not have ballasts, unlike fluorescents, and are a straight swap-out.
<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">The only possible issue is that their color temperature tends to be higher than that of incandescents. Some LED bulbs can be configured to “cool” or “warm” modes
with a switch, but most are set at the factory. Cool LEDs can change the visual perception of colors in exhibits and shared spaces, though that can also be good – many dioramas and specimen displays look better with higher color temperature lighting, and up
to now that has often been achieved with halogen bulbs that get very hot indeed and eat a lot of power.
<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">One caveat is that the optimistic durability figures many makers give – “lasts seven years!” are just that, optimistic. These bulbs are almost all made in China
and to keep the price down, the QC is not all it might be. I’ve had them fail or start flickering (which can’t be fixed) in less than a year in some cases.
<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">Paul Callomon</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"><br>
<i>Collection Manager, Malacology and General Invertebrates</i></span><span lang="EN-US"><o:p></o:p></span></p>
<div class="MsoNormal" align="center" style="text-align:center"><span lang="EN-US">
<hr size="1" width="100%" align="center">
</span></div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">Academy of Natural Sciences of Drexel University, Philadelphia</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"><br>
<i><a href="mailto:callomon@ansp.org" target="_blank">callomon@ansp.org</a> Tel 215-405-5096 - Fax 215-299-1170</i></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Nhcoll-l
<a href="mailto:nhcoll-l-bounces@mailman.yale.edu" target="_blank"><nhcoll-l-bounces@mailman.yale.edu></a>
<b>On Behalf Of </b>Angela Hornsby<br>
<b>Sent:</b> Thursday, January 23, 2025 1:29 PM<br>
<b>To:</b> <a href="mailto:nhcoll-l@mailman.yale.edu" target="_blank">nhcoll-l@mailman.yale.edu</a><br>
<b>Subject:</b> [Nhcoll-l] LED lights in collections</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US"> <o:p></o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="3" cellpadding="0" width="100%" style="width:100.0%;margin-left:36.0pt">
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<td style="border:none;border-left:solid goldenrod 3.0pt;background:cornsilk;padding:0cm 3.0pt 0cm 3.0pt">
<p><b><span style="font-family:"Arial",sans-serif;font-variant:small-caps;color:black">External.</span></b><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US">Hi everyone,<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US">Our campus facilities management would like to change all of our general lighting in non-public collections spaces (dry and wet) to LEDs. I haven't found any sources suggesting major negatives (e.g.,
<a href="https://urldefense.com/v3/__https:/www.nps.gov/museum/publications/mhi/chap4.pdf__;!!KGKeukY!ztpZgmv9y3v5wk9H77YsW9QuWVS0KqD3h4ENFEVkSnnPAhUhF9t6tB44ov33jvEcCfTyMwBUxk-bpUVs0Q$" target="_blank">
https://www.nps.gov/museum/publications/mhi/chap4.pdf</a>).<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US">Does anyone have experience with the change to LEDs, particularly any unanticipated effects?<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US">Angela<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US">-- <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US" style="color:#222222">Angela Hornsby, Ph.D. (she)</span><span lang="EN-US">
<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US" style="color:#222222">Zoological Collections Manager (MMNH / JFBM)</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US" style="color:#222222">Bell Museum</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US" style="color:#222222">University of Minnesota</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US" style="color:#222222"><a href="https://urldefense.com/v3/__https:/www.bellmuseum.umn.edu/zoological-collections/__;!!KGKeukY!ztpZgmv9y3v5wk9H77YsW9QuWVS0KqD3h4ENFEVkSnnPAhUhF9t6tB44ov33jvEcCfTyMwBUxk94EDQTNQ$" target="_blank">https://www.bellmuseum.umn.edu/zoological-collections/</a></span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span lang="EN-US" style="color:#222222"> </span><span lang="EN-US"><o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
<pre><span lang="EN-US">_______________________________________________<o:p></o:p></span></pre>
<pre><span lang="EN-US">Nhcoll-l mailing list<o:p></o:p></span></pre>
<pre><span lang="EN-US"><a href="mailto:Nhcoll-l@mailman.yale.edu" target="_blank">Nhcoll-l@mailman.yale.edu</a><o:p></o:p></span></pre>
<pre><span lang="EN-US"><a href="https://urldefense.com/v3/__https:/mailman.yale.edu/mailman/listinfo/nhcoll-l__;!!KGKeukY!ztpZgmv9y3v5wk9H77YsW9QuWVS0KqD3h4ENFEVkSnnPAhUhF9t6tB44ov33jvEcCfTyMwBUxk871E1Kbw$" target="_blank">https://mailman.yale.edu/mailman/listinfo/nhcoll-l</a><o:p></o:p></span></pre>
<pre><span lang="EN-US"> <o:p></o:p></span></pre>
<pre><span lang="EN-US">_______________________________________________<o:p></o:p></span></pre>
<pre><span lang="EN-US">NHCOLL-L is brought to you by the Society for the Preservation of<o:p></o:p></span></pre>
<pre><span lang="EN-US">Natural History Collections (SPNHC), an international society whose<o:p></o:p></span></pre>
<pre><span lang="EN-US">mission is to improve the preservation, conservation and management of<o:p></o:p></span></pre>
<pre><span lang="EN-US">natural history collections to ensure their continuing value to<o:p></o:p></span></pre>
<pre><span lang="EN-US">society. See <a href="https://urldefense.com/v3/__http:/www.spnhc.org__;!!KGKeukY!ztpZgmv9y3v5wk9H77YsW9QuWVS0KqD3h4ENFEVkSnnPAhUhF9t6tB44ov33jvEcCfTyMwBUxk-4m4u91Q$" target="_blank">http://www.spnhc.org</a> for membership information.<o:p></o:p></span></pre>
<pre><span lang="EN-US">Advertising on NH-COLL-L is inappropriate.<o:p></o:p></span></pre>
</blockquote>
<p><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">--
<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif">****</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif"> </span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif">Dirk Neumann</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif">Collection Manager, Hamburg</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif">Postal address:</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif">Museum of Nature Hamburg</span></b><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif"><br>
<span style="color:#008669">Leibniz Institute for the Analysis</span></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif;color:#008669">of Biodiversity Change</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif">Dirk Neumann</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif"><a href="https://www.google.com/maps/search/Martin-Luther-King-Platz+3+%0D%0A+20146+Hamburg?entry=gmail&source=g" target="_blank">Martin-Luther-King-Platz
3</a></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif"><a href="https://www.google.com/maps/search/Martin-Luther-King-Platz+3+%0D%0A+20146+Hamburg?entry=gmail&source=g" target="_blank">20146
Hamburg</a><br>
+49 40 238 317 – 628</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><u><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif;color:blue"><a href="mailto:d.neumann@leibniz-lib.de" target="_blank">d.neumann@leibniz-lib.de</a></span></u><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Source Sans Pro",sans-serif"><a href="https://urldefense.com/v3/__http:/www.leibniz-lib.de__;!!KGKeukY!ztpZgmv9y3v5wk9H77YsW9QuWVS0KqD3h4ENFEVkSnnPAhUhF9t6tB44ov33jvEcCfTyMwBUxk9X4hxgFw$" target="_blank">www.leibniz-lib.de</a></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.0pt;font-family:"Source Sans Pro",sans-serif"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.0pt;font-family:"Source Sans Pro",sans-serif">--
<br>
Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels<br>
Postanschrift: <a href="https://www.google.com/maps/search/Adenauerallee+127,+53113+Bonn,+Germany?entry=gmail&source=g" target="_blank">
Adenauerallee 127, 53113 Bonn, Germany</a><br>
<br>
Stiftung des öffentlichen Rechts;<br>
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Grüter (Kaufm. Geschäftsführer)<br>
Sitz der Stiftung: <a href="https://www.google.com/maps/search/Adenauerallee+160?entry=gmail&source=g" target="_blank">
Adenauerallee 160</a> in Bonn<br>
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.0pt;font-family:"Source Sans Pro",sans-serif"> </span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">--
<br>
Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels<br>
Postanschrift: <a href="https://www.google.com/maps/search/Adenauerallee+127,+53113+Bonn,+Germany?entry=gmail&source=g" target="_blank">
Adenauerallee 127, 53113 Bonn, Germany</a><br>
<br>
Stiftung des öffentlichen Rechts;<br>
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Grüter (Kaufm. Geschäftsführer)<br>
Sitz der Stiftung: <a href="https://www.google.com/maps/search/Adenauerallee+160?entry=gmail&source=g" target="_blank">
Adenauerallee 160</a> in Bonn<br>
Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst<o:p></o:p></span></p>
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_______________________________________________<br>
NHCOLL-L is brought to you by the Society for the Preservation of<br>
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mission is to improve the preservation, conservation and management of<br>
natural history collections to ensure their continuing value to<br>
society. See <a href="https://urldefense.com/v3/__http:/www.spnhc.org__;!!KGKeukY!ztpZgmv9y3v5wk9H77YsW9QuWVS0KqD3h4ENFEVkSnnPAhUhF9t6tB44ov33jvEcCfTyMwBUxk-4m4u91Q$" target="_blank">
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Advertising on NH-COLL-L is inappropriate.<o:p></o:p></span></p>
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<a href="mailto:Nhcoll-l@mailman.yale.edu" target="_blank">Nhcoll-l@mailman.yale.edu</a><br>
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<br>
_______________________________________________<br>
NHCOLL-L is brought to you by the Society for the Preservation of<br>
Natural History Collections (SPNHC), an international society whose<br>
mission is to improve the preservation, conservation and management of<br>
natural history collections to ensure their continuing value to<br>
society. See <a href="http://www.spnhc.org" target="_blank">http://www.spnhc.org</a> for membership information.<br>
Advertising on NH-COLL-L is inappropriate.<o:p></o:p></p>
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